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Evidence for metasomatic mantle carbonatitic magma extrusion in Mesoproterozoic ore-hosting dolomite rocks in the middle Kunyang rift, central Yunnan, China

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Progress in Natural Science:Materials International 2008年第8期18卷 965-974页

作者： Yongbei Zhanga,b,c, hua Bia,*, Longshi yua, Shihua Sunc, Jiaxiang Qiub, Chengyan Xub, Hao Wang b, Renjing Wang b a The Department of Resources, Environment and Tourism, Hainan Normal University, No. 432, Yinpo Road, Longshepo, Haikou 57000, China b Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China c Faculty of Earth Sciences, China University of Geosciences, Wuhan 470074, China The Department of Resources Environment and Tourism Hainan Normal University No. 432 Yinpo Road Longshepo Haikou 57000 China Key Laboratory of Mineral Resources Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China Faculty of Earth Sciences China University of Geosciences Wuhan 470074 China

The Kunyang rift lying on the western margin of the Yangtze platform is a rare Precambrian Fe-Cu mineralization zone. WudingLufeng basin that is an important part of the zone is located on the west edge in the middle of the rift. The most important ore-hosting rocks are Mesoproterozoic dolomite rocks in the basin controlled by a ring fracture system, which is a fundamental structure of the basin. Plenty of silicate minerals and acicular apatite, feldspar phenocrysts and small vesicular, flown line and flown plane structures, melt inclusion and high temperature fluid inclusion found in most ore-hosting dolomites suggest that this kind of rocks could not be sedimentary dolomite, marble or hydrothermal carbonate rocks. The Zr/Hf and Nb/Ta values of the rocks are identical with those of associated mantle-derived rocks, and vary widely. For the monomineral dolomite, d18OSMOW‰ = +5.99 to +18.4 and d13CPDB‰ = à3.01 to +0.94, which fall within the range for all carbonatitic volcanic rocks of the world. As for the accessory minerals, the values of d18OSMOW‰ of magnetite (=+3.47 to +5.99‰) are close to that of the mantle (<5.7%), and the d34S‰ values of sul?des (à5.09 to +5.78, averaging +1.50) are close to that of meteorite. For all the ore-bearing dolomite rocks, eNd = +0.19 to +2.27, and the calculated ISr = 0.699143, while for the associated mantle-derived rocks, eNd = +3.18 to +3.72. All the data suggest that the mineral assemblage is not only igneous but also of metasomatic mantle origin. And the presence of acicular apatite indicates that the rocks were formed by magma rapidly cooling. And the phenocryst texture and vesicular, flown and ropy and pyroclastic structures suggest that the igneous rocks were extrusive. Therefore, the ore-bearing dolomite rocks are carbonatitic volcanic rocks. This conclusion implies that most iron and copper ore deposits hosted in the dolomite rocks should be of the carbonatite type.

关键词： Central Yunnan Kunyang rift Precambrian Mineralization Carbonatitite Volcanic rocks Petrogenesis Iron and copper ore deposit

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哈尔滨市空中花粉研究初报

黑龙江大学自然科学学报 1989年第3期6卷 25-31页

作者：满玉华程敏黑龙江大学生物研究所哈尔滨市第47中学

空气中花粉散布规律性的研究对于予防、诊断、治疗花粉致敏疾病具有重要的意义。本文报道的是1987年4月15日至1988年4月14日南岗区的观察结果。本市4月中旬开始到11月上旬有花粉飘散,其他月份极少或无。一年中共出现两次高峰,即春季4—... 详细信息

空气中花粉散布规律性的研究对于予防、诊断、治疗花粉致敏疾病具有重要的意义。本文报道的是1987年4月15日至1988年4月14日南岗区的观察结果。本市4月中旬开始到11月上旬有花粉飘散,其他月份极少或无。一年中共出现两次高峰,即春季4—5月和夏季8月,春季花粉主要是榆属(Ulmus L.)、杨属(Populus L.)、柳属(SalixL.)、桦木属(Betala L.)、槭属(Acer L.)、蔷薇科(Roaceae)、木樨科(Cleaceae)、胡桃科(Juglandaceae)和松科(pinaceae)等木本植物。夏秫花粉是草本植物、主要的有蒿属(Artemisia L.)、葎草属(Humulus L.)、藜科(Chenopodiaceae)、苋科(Amaranthgceae)和禾本科(Gramineae)等。

关键词：花粉气传花粉致敏花粉哈尔滨市

营养小肽对黄金鲫生长、血清生化和抗氧化能力的影响

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中国饲料 2024年第2期 67-71页

作者：胡贺陈鹏万兵袁化江苏福润德科技有限公司江苏南京210036 南京农业大学江苏南京210036 大连海洋大学辽宁大连116023

为探讨营养小肽对黄金鲫生长、血清生化和抗氧化性能的影响。试验分为1个对照组和2个试验组,分别投喂基础饲料和添加2.0%营养小肽的饲料。结果显示:养殖52d和128d,体质量、体长、增重率和特定生长率试验组均大于对照组。养殖128d时,试... 详细信息

为探讨营养小肽对黄金鲫生长、血清生化和抗氧化性能的影响。试验分为1个对照组和2个试验组,分别投喂基础饲料和添加2.0%营养小肽的饲料。结果显示:养殖52d和128d,体质量、体长、增重率和特定生长率试验组均大于对照组。养殖128d时,试验组与对照组有显著差异(0.01≤P 0.05)。试验组氧化氢酶(CAT)活力降低了8.77%和3.43%,对照组降低了11.86%(P> 0.05)。试验组谷胱甘肽过氧化物酶(GSH-PX)活力提高了33.94%和30.75%,对照组提高了25.33%(P> 0.05)。试验组总抗氧化能力(T-AOC)能力提高了12.50%和4.35%,对照组降低45.71%(P> 0.05)。试验组丙二醛(MDA)含量提高了45.19%和56.65%,对照组提高80.85%(P> 0.05)。试验组一氧化氮(NO)含量提高了126.38%和38.91%,对照组降低了11.25%(P <0.01)。营养小肽对养殖黄金鲫的生长有一定的促进作用,脂质代谢处于健康水平,具有一定的抗氧化性,可有效提高黄金鲫内源性抗氧化酶活力和抗氧化能力,同时增强机体维持自由基平衡的能力。

关键词：营养小肽黄金鲫生长血清生化抗氧化能力

Investigation of the interaction between HIV-1 DNA and cyclic peptides by electrospray ionization mass spectrometry

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Chinese Chemical Letters 2009年第3期20卷 330-333页

作者： Yi Quan Liu Hui Hui Li Yun hua Ye Gu yua Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education Department of Chemical Biology College of Chemistry and Molecular Engineering Peking University Beifing 100871 China School of Chemistry and Environmental Science Nanjing Normal University Nanjing 210097 China

The interaction between HIV-1 DNA and five cyclic peptides （CP1-CP5） was investigated using electrospray ionization mass spectrometry （ESI-MS）. It revealed that CP1 [c（Ala-Tyr-Leu-Ala-Gly）] and CP4 [c（Pro-D-Tyr... 详细信息

关键词： HIV-1 DNA Cyclic peptide ESI-MS

The clinicopathological and prognostic significance of PD-L1 expression in pancreatic cancer:A meta-analysis

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Hepatobiliary & Pancreatic Diseases International 2018年第2期17卷 95-100页

作者： He-Li Gaoa Liang Liua Zi-Hao Qi hua-Xiang Xu Wen-Quan Wang Chun-Tao Wu Shi-Rong Zhang Jin-Zhi Xu Quan-Xing Ni Xian-Jun yua Department of Pancreatic Surgery Fudan University Shanghai Cancer CenterShanghai 200032China Department of Oncology Shanghai Medical CollegeFudan UniversityShanghai 200032China Shanghai Pancreatic Cancer Institute Shanghai 200032China Pancreatic Cancer Institute Fudan UniversityShanghai 200032China

Background: Immunotherapy has shown promise against solid tumors. However, the clinical significance of programmed cell death 1(PD-1) and programmed cell death ligand 1(PD-L1) in pancreatic ductal adenocarcinoma(PDAC) remains unclear. This meta-analysis aimed to analyze the prognostic effect of PD-L1 in *** sources: Electronic search of the Pub Med, Cochrane Library and Web of Science was performed until December 2016. Through database searches, we identified articles describing the relationship between PD-L1 status and PDAC patient prognosis. Meta-analysis was performed to investigate the relationship between PD-1 and overall survival(OS).Results: Nine studies with 989 PDAC patients were included for PD-L1 expression analysis. And 5 studies with 688 PDAC patients were included in the prognostic analysis. The PD-L1 positive rate measured by immunohistochemistry(IHC) was higher than that measured by polymerase chain reaction(PCR)(P < 0.001). PDAC patients with high expression levels of PD-L1 had significantly reduced OS(HR = 2.34;95% CI: 1.78–3.08). Subgroup analysis showed that the prognostic effect of PD-L1 levels was similar between the IHC and PCR methods. The PD-L1 positive rate was associated with PDAC T stages; the PD-L1 positive rate in the T3–4 group was higher than that in the T1-2 group(OR = 0.37; P = 0.001).Conclusions: High PD-L1 expression levels predicted a poor prognosis in PDAC patients. Thus, PD-L1 status helps determine treatment in PDAC patients.

关键词： Pancreatic ductal adenocarcinoma Programmed cell death ligand 1 Prognosis Meta-analysis

A MODEL POTENTIAL FOR CHEMISORPTION:CO+Ni(100)

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Journal of Energy Chemistry 1992年第3期 214-221页

作者： YU hua-Gen CHENG Ji-yua Chengdu Institute of Organw Chemistry Academia Sinica,Chendu,Sichuan 610015 Received December 6,1991

A model LEPS potential has been applied to describe the interac-tion of carbon monoxide with the Ni(100)crystal *** binding energiescomputed from the potential function agree with the trend of previous theo-retical calculations and experimental results,with the hollow site most stable,the bridge site intermediate and the on-top position least *** twiatomicadsorption is also possible,which is metastable.

关键词： ICN CO

HIGH DIELECTRIC PROPERTIES OF LOW-TEMPERATURE SINTERED(Ca_(0.5)Cu_(0.5))TiO_(3)CERAMICS

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Journal of Advanced Dielectrics 2011年第2期1卷 203-207页

作者： JIAN-CONG yua yuaN-hua LIN BO CHENG CE-WEN NAN State Key Laboratory of New Ceramics and Fine Processing Department of Material Science and Engineering Tsinghua University Beijing 100084 P.R.China Laboratory of Structural Steel Functional Materials and Heat Treatment Processing Technology Institute of Aeronautical Materials Beijing 100095 P.R.China

High dielectric-permittivity(Ca_(0.5)Cu_(0.5))TiO_(3)-based ceramics have been prepared by a sol-gel method combined with a solid state sintering *** results indicate that the additives of H_(3)BO_(3)have a remarkable effect on the sintering temperature,microstructure and dielectric *** density(Ca_(0.5)Cu_(0.5))TiO_(3).bulk ceramics can be obtained after sintering at 930℃.The as-sintered ceramics show high dielectric constants(~1000),and low losses(~0.05).The dielectric properties are nearly independent of frequency and temperature in a wide *** activation energy is calculated as about_(0.5)0 eV by impedance spectrum method.

关键词： (Ca_(0.5)Cu_(0.5))TiO_(3) dielectric property activation energy

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原子吸收光谱法测定玉竹中的矿质元素

光谱实验室 2010年第3期27卷 1024-1026页

作者：衷明华李云韩山师范学院化学系广东省潮州市桥东521041 韩山师范学院生物系广东省潮州市桥东521041

采用原子吸收光谱法测定了玉竹中的K、Ca、Mg、Fe、Mn、Co等6种矿质元素并对提取方法进行了比较。加标回收率在93.2%—106.0%之间,测定方法简单、准确,结果令人满意。

关键词：原子吸收光谱法玉竹矿质元素

The Treatment of Mid-shaft Clavicle Fractures

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Chinese Medical Journal 2015年第21期128卷 2946-2951页

作者： Qing-hua Sang Zhi-Gang Gou hua-Yong Zheng Jing-Tao yua Jian-Wen Zhao Hong-Ying He Chuang Liu Zhi Liu Department of Orthopedics Beijing Army General Hospital Beijino 100700 China Department of Orthopedics Tianjin Sanatorium Affiliated to Beijing Military Area Command Tianjin 300381 China

Objective： Through reviewing the relevant literature from the past decades, to summarize the assessment and management of fractures of the clavicle, and provide an overview of the clinical results of a range of treatment options. Data Sources： The data analyzed in this review are mainly from articles included in PubMed and EMBASE, published from 1960 to 2015. Study Selection： Studies involving assessment of fractures of the clavicle were reviewed. Further literatures were gathered regarding the conservative and surgical treatment of these fractures, including the methods of fixation and the surgical approaches used. Both conservative and surgical treatments were then compared and contrasted. Results： Through retrieving and reading the abstract, a total of 42 representative articles were selected, which covered all aspects of the conservative treatment and surgical treatment, and compared the advantages and disadvantages of different treatment options. Conclusions： Although the majority of recent data suggest that surgery may be more appropriate as it improves functional outcome and reduces the risk of complications, we recommend that the treatment should be individually assessed.

关键词： Conservation Internal Fixation lntrarnedullary Fixation: Mid-shaft Clavicle Fracture Plate: Surgery